What is the MOA of beta-adrenergic antagonists in glaucoma treatment?

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Multiple Choice

What is the MOA of beta-adrenergic antagonists in glaucoma treatment?

Explanation:
Blocking beta receptors in the ciliary body reduces aqueous humor production, thereby lowering intraocular pressure. The ciliary epithelium uses beta-adrenergic signaling to drive fluid secretion; when this pathway is blocked, less aqueous humor is formed. This is different from drugs that increase outflow, such as prostaglandin analogs that enhance uveoscleral drainage or cholinergic agents that boost trabecular outflow. The other options describe actions that don’t reflect how beta-adrenergic antagonists lower IOP.

Blocking beta receptors in the ciliary body reduces aqueous humor production, thereby lowering intraocular pressure. The ciliary epithelium uses beta-adrenergic signaling to drive fluid secretion; when this pathway is blocked, less aqueous humor is formed. This is different from drugs that increase outflow, such as prostaglandin analogs that enhance uveoscleral drainage or cholinergic agents that boost trabecular outflow. The other options describe actions that don’t reflect how beta-adrenergic antagonists lower IOP.

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